scholarly journals S3QELs protect against diet‐induced intestinal barrier dysfunction

Aging Cell ◽  
2021 ◽  
Author(s):  
Mark A. Watson ◽  
Blaine Pattavina ◽  
Tyler A. U. Hilsabeck ◽  
Jose Lopez‐Dominguez ◽  
Pankaj Kapahi ◽  
...  
Keyword(s):  
Intestinal Barrier ◽  
Barrier Dysfunction ◽  
Intestinal Barrier Dysfunction

Confirmation and Prevention of Intestinal Barrier Dysfunction and Bacterial Translocation Caused by Methotrexate

2006 ◽  
Vol 51 (9) ◽  
pp. 1549-1556 ◽  
Author(s):  
Desheng Song ◽  
Bin Shi ◽  
Hua Xue ◽  
Yousheng Li ◽  
Xiaodong Yang ◽  
...  
Keyword(s):  
Bacterial Translocation ◽  
Intestinal Barrier ◽  
Barrier Dysfunction ◽  
Intestinal Barrier Dysfunction

Oxygen supplementation during airway instrumentation improves intestinal barrier dysfunction

2006 ◽  
Vol 41 (8) ◽  
pp. 1386-1391 ◽  
Author(s):  
Ali Nayci ◽  
Sibel Atis ◽  
Gulden Ersoz ◽  
Ayse Polat ◽  
Derya Talas
Keyword(s):  
Intestinal Barrier ◽  
Barrier Dysfunction ◽  
Oxygen Supplementation ◽  
Intestinal Barrier Dysfunction

scholarly journals Cystine reduces tight junction permeability and intestinal inflammation induced by oxidative stress in Caco-2 cells

Amino Acids ◽  
2021 ◽  
Author(s):  
Tatsuya Hasegawa ◽  
Ami Mizugaki ◽  
Yoshiko Inoue ◽  
Hiroyuki Kato ◽  
Hitoshi Murakami
Keyword(s):  
Oxidative Stress ◽  
Tight Junction ◽  
Mrna Expression ◽  
Inflammatory Cytokines ◽  
Inflammatory Responses ◽  
Intestinal Barrier ◽  
Barrier Dysfunction ◽  
Whole Cells ◽  
Intestinal Barrier Dysfunction ◽  
Pro Inflammatory Cytokines

AbstractIntestinal oxidative stress produces pro-inflammatory cytokines, which increase tight junction (TJ) permeability, leading to intestinal and systemic inflammation. Cystine (Cys2) is a substrate of glutathione (GSH) and inhibits inflammation, however, it is unclear whether Cys2 locally improves intestinal barrier dysfunction. Thus, we investigated the local effects of Cys2 on oxidative stress-induced TJ permeability and intestinal inflammatory responses. Caco-2 cells were cultured in a Cys2-supplemented medium for 24 h and then treated with H2O2 for 2 h. We assessed TJ permeability by measuring transepithelial electrical resistance and the paracellular flux of fluorescein isothiocyanate–dextran 4 kDa. We measured the concentration of Cys2 and GSH after Cys2 pretreatment. The mRNA expression of pro-inflammatory cytokines was assessed. In addition, the levels of TJ proteins were assessed by measuring the expression of TJ proteins in the whole cells and the ratio of TJ proteins in the detergent-insoluble fractions to soluble fractions (IS/S ratio). Cys2 treatment reduced H2O2-induced TJ permeability. Cys2 did not change the expression of TJ proteins in the whole cells, however, suppressed the IS/S ratio of claudin-4. Intercellular levels of Cys2 and GSH significantly increased in cells treated with Cys2. Cys2 treatment suppressed the mRNA expression of pro-inflammatory cytokines, and the mRNA levels were significantly correlated with TJ permeability. In conclusion, Cys2 treatment locally reduced oxidative stress-induced intestinal barrier dysfunction possively due to the mitigation of claudin-4 dislocalization. Furthermore, the effect of Cys2 on the improvement of intestinal barrier function is related to the local suppression of oxidative stress-induced pro-inflammatory responses.

Procyanidin A1 and its digestive products prevent acrylamide-induced intestinal barrier dysfunction via the MAPK-mediated MLCK pathway

2021 ◽  
Author(s):  
Fangfang Yan ◽  
Wanbing Chen ◽  
Li Zhao ◽  
Qun Lu ◽  
Chengming Wang ◽  
...  
Keyword(s):  
Small Intestine ◽  
Intestinal Barrier ◽  
Barrier Dysfunction ◽  
Gastrointestinal Digestion ◽  
Intestinal Barrier Dysfunction

Procyanidins can alleviate small intestine damage induced by acrylamide (ACR). However, little is known about whether procyanidins after gastrointestinal digestion can prevent ACR-induced intestinal barrier damage and the possible mechanism....

MicroRNA‐21 increases the expression level of occludin through regulating ROCK1 in prevention of intestinal barrier dysfunction

2018 ◽  
Vol 120 (3) ◽  
pp. 4545-4554 ◽  
Author(s):  
Zhihua Liu ◽  
Chao Li ◽  
Shihua Chen ◽  
Hongcheng Lin ◽  
Huan Zhao ◽  
...  
Keyword(s):  
Intestinal Barrier ◽  
Expression Level ◽  
Barrier Dysfunction ◽  
Intestinal Barrier Dysfunction

The ameliorative effect of the Pyracantha fortuneana (Maxim.) H. L. Li extract on intestinal barrier dysfunction through modulating glycolipid digestion and gut microbiota in high fat diet-fed rats

2019 ◽  
Vol 10 (10) ◽  
pp. 6517-6532 ◽  
Author(s):  
Hang Xu ◽  
Chunfang Zhao ◽  
Yutian Li ◽  
Ruiyu Liu ◽  
Mingzhang Ao ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
High Fat Diet ◽  
Intestinal Barrier ◽  
High Fat ◽  
Barrier Dysfunction ◽  
Fruit Extract ◽  
Intestinal Barrier Dysfunction ◽  
Beneficial Effects ◽  
Obese Rats ◽  
Ameliorative Effect

Pyracantha fortuneana fruit extract (PFE) exhibits beneficial effects on IBF in association with the modulation of glycolipid digestion and gut microbiota in HFD-fed obese rats.

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